Bobbin-winder fqr sewing-machines



(NO Model.) H. LBPEBER.

BOBBIN WINDEB. POR SEWING MACHINES. No. 351,113. Patented Oct. 19, 1886.

WITNEssEse INVBNTOR:

y MW/D B ATTORNEYS.

UNITED STATES PATENT Ottica.'

HENRY LEFEBER, OF PHILADELPHIA, PENNSYLVANIA.

BOBBlN-WINDR FOR SEWING-MACHIN'ES.

SPECIFICATION vforming part of Letters Patent No. 351,113, dated October 19, 1.886.

Application filed January 6, 18H6.

To all whom t may concern:

Be it known that l, HENRY LEFEBER, of Philadelphia, in the county of Philadelphia, in the State of Pennsylvania, have invented a newand Improved Bobbin-Winder for Sewing- Machines, of which the following is a full, clear, and exact description.

My invention has for its object to providea simple, inexpensive, and efii-ient device for winding the Dobbins of sewing-machines while the machine is at work, and without requiring the attention of the operator further than to place the bobbins in the winder and push a frame or lever toward the sewing-machine drive wheel, and whereby the time of the operator will be economized as very little interruption ofthe sewing is necessary to wind the bobbins, which stop rotating automatically when they are filled.

The invention consists in certain novel features of construction and combination ot'parts oi' the bobbin-winder, all as hereinafter fully set forth.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters ot' reference indicate corresponding part-s in all the iigures.

Figure l is a vertical sectional elevation of my improved bobbin-winder and adjacent parts ol" a sewing-machine to which it is atY tached. Fig. 2 is a front View of the winder, partly sectional, and with the spool-post and spool removed; and Fig. 3 is a plan view of the winder, partly broken away and in section.

The forked frame or lever A, which carries the bobbin B and drive-wheel O, is pivoted at its lower end by a pin, a, to the outer end of an arm or case, D, which is held byascrew, d, to the frame or arm E ofthe sewing-machine, and so that the bobbin drive-wheel C may be brought into contact with the drive-wheel F ot' the sewing-machine. The revolving head b on the shaft of drive-wheel C has no endwise movement, but the opposite head, b', has endwise movement, and is forced forward or toward head b by a spring, b2, to hold the bobbins in the frame A to be wound with thread passing from the spool G, which is placed on a pin, g', Xed to the removable cover d of the arm D. The arm D is recessed to accommodate the inner end of a trip-lever, H, which is pvoted to the arm on a pin, h, and extends Serial No. 187,781. (No model.)

outward and carries at its outer end a plate, h', which is pressed upward against the thread being wound ou the bobbin by a spring, h2, held on a pin,h3, in arm D, and pressing downward on the inner end or short arm of the lever.

Below the lever His fitted so as to move end wise the rod I, which passes freely through the fraine A, or between the pivot lugs thereof, and has a head, z', outside ofthe traine. and a spring. i', fitted at the inner end oi' the rod I, forces it outward when a stop-lug..i",on the rod is no longer held bark by the engagement with it ofthe back end ot' the lever H. (See Fig. 1.)

The thread guide or arm J, over which the thread passes from the tension-disksKK,

mounted on the end ofthe arm A ot' frame A, to the bobbin B, maybe attached to the inner right-hand face of the trame A, as in Fig. l, and in full lines in Fig. 3, when thel sewingmachine drive-wheel F revolves toward the operator or in direction of the arrow l in Fig. l, the bobbin Bandits drive wheel C-then rotating the other way in the direction of the arrowY 2 in Fig. l, and when the drive wheel F ofa sewing-machine runs in the opposite direction to that above indicated the thread -guide J will be attached at the front face and left-hand end ot the frame A, holes being provided at c to receive the attaching-screwsj, which hold the thread-guide to place, and in this instance the bobbin and its drivewheel will rotate in the opposite direction to that indicated by the arrow 2, as will readily be understood. It is evident that with this reversible thread-guide J thebobbin-winder is adapted for use withA sewing-machines whose drivewvheels rotate either toward or from the operator.

A set-screw, L, threaded into a depending lug, d2, of the arm or case D, may be turned in more or less after the holding-screw d is loosened or turned out a little, so as to swing thecuter end of arm D upward to carry the bobbin drive-wheel C inward bodily when in operating position against the sewing-machine drive-wheel, and whereby Wearlof the drivewheel C may betaken up at any time and its frictional contact with the drivewheel F be accurately regulated.

The operation of the bobbin-winder is as follows: When the empty bobbin is adjusted IOO in the heads 'b b', with the thread g caught in it, the frame A will be pressed inward, and when the bobbin drive-wheel C strikes the sewing-machine drive-Wheel F the rod I will be pushed inward by contact of the frame A with the shoulder i3 of the rod, and the back end of lever H will spring down in front of the lug i2, as in Fig. 1, to hold the Wheel C to wheel F, and when the thread passing over the guide J to the bobbin lls the latter to the required extent the plate h', which bears on the thread, will be pressed downward by the thread to lift the back end of lever H and release the rodI, which then will be forced ontward by the spring i', and its shoulder 113 will push or swing the frame A outward and carry the drive-Wheel G away from the drive-wheel F, and the pressure or friction of the leverplate h on the bobbin-thread will instantly stop the rotation of the filled bobbin. It is obvious that the filled bobbin is stopped autoniatically; hence it only is necessary for the operator to insertV the bobbin in the Winder and push the frame A inward, and thebobbin will be wound and stopped while the sewing machine is at Work; hence little or no time of the operator will be lost in Winding the bob bins, and bobbins thus wound hold about double the quantity of thread they contain when wound by hand.

rlheherein-described bobbin-winder maybe `employed for filling bobbins to be used in silk- Weaving or in knitting various fibrous yarns, or for winding the nire coils ot electroniag nets. or for other analogous uses, as will readily be understood.

Having` thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination. in a bobbin-Winder for sewing machines, of the frame or lever A, carrying the friction wheel C and bobbinholding devices, the arm D, to which frame A is pivoted at a. the lever H,' pivoted in arm D, and provided with a plate, h', adapted to bear on the bobbin-thread, a spring, h, holding plate h to the bobbin, and a rod, I, having a stop-lug, i2, and shoulder 1,and aspring forcing the rod I and frame A'outward, sublug d2 of arm D into thesewing-machine frame E, and a screw, L, threaded into lug d', andv bearing against said frame E, substantiallyas and for the purposes herein set forth.

3. In bobbin-Winders for sewing-machines, the frame or lever A, provided with holes, as at a', at opposite faces,` and near the opposite journals, which support the bobbin, in conibination with a reversible thread-guide, J., and fastening pins or screws, substantiallyas described, for the purpose set forth.

4. Ihe combination, in abobbin-Winder for sewing-machines, of the frame or lever A, carrying the friction-Wheel C, and bobbinholding devices, as at b b', the arm D, to which frame A is pivoted at a, lever H, pivoted in arm D, and having a plate, h', adapted tothe bobbin-thread, a rod, I, having astoplug,

and shoulder i3, a spring forcing the rod I and frame A outward, a spool=post, g', on arm D, an arm, A', on frame A, carrying a tension device, and fastening andadjusting screws d L. substantially as shown and described, and for the purposes herein set forth.

HENRY LEFEBER. Witnesses:

EDW. SCHMIDT, LoUIs POEHLER. 

